Combine CSS/JS files with Combinator

Combinator v0.5 is here! Now you can speed up your Orchard sites by letting this module combine external stylesheets and script files. Although the module is currently
only advised for experimenting, simpler sites can benefit from the usage even now.

A big leap forward: Combinator stages to beta with plenty of improvements!

What's in this version:

Seamless combination of overridden stylesheets (thanks to Sebastien Ros for his contribution!)

Improved relative (image) path processing

Improved handling of CDN resources (now their url is stored, together with their settings)

Conditional resources can be also minified (and combined if multiple with the same condition follow each other)

Improved caching: after the first page view with a set of resources the module practically has no impact on performance

Reverting combined file storage back to IStorageProvider, so with a custom provider the module works in a cloud hosting environment too

Exclusion regex for combination too

Vastly refactored, improved code

Documentation was updated accordingly. I tested this version carefully with different configurations. Unit testing suite will also soon come.
I'm very excited about this release, I hope you'll like it!